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Thanks Jeju, I guess that makes sense to focus on SOH if you are owner with the warranty still in place. For me it’s irrelevant, no warranty, no possible claim, I’m more interested in cell voltages fluctuations during my trips, battery percentage drop for the same trip with how many kWh I can...

I’m not sure, but OBD dongle would get the informations from OBC, not directly from BMS? Car Scanner is reliable App, has great range of options and I did connect it to my car from the new phone after putting replacement battery. I guess that it’s recognizing my car’s OBC as the original 2015...

I see 2018 05 19, it’s not easy to see

You are right again Jeju, I was convinced that they added one cell per module on the 10-cell modules to make 11 cells. So I just counted the number of levels on the small modules. In these pictures, if we look at the grooves on the left side, because there is a heating plate in front on the old...

Hi, This is E4300 battery pack. Definitely only 96 cells, I did physically check and on my OBD CarScaner app I have only 96 cells readings as well. Not sure are they 80 or 75Ah, but for me that isn’t important after all. By the time I need to change modules or cells they will be different...

No, actually I’ve got whole battery pack, in the shell and I’ve put it on my car. I’ve opened it first to see and compare and to connect it with my car before putting it on, just in case wouldn’t work, not fun to do it all twice 🤪. My old BMS and 7 modules I’ve kept for future DIY repairs when...

… BMS from 30kW should probably have 4 more voltage measuring connections, one from each 10 cells modules (11 cells now). That is probably why they supply new harness cables when they replaced under warranty 27kW with 30kW battery. As I could see during my “bricolage” there were always one or...

Hi Perez, Unfortunately, I am not familiar with the changes in the charging system between different models. It is true that my second-hand battery was removed from a car registered in 2018 in GB, but I think it is the 27kW version because it also only has 96 cells and not 100 as it should for...

I successfully replaced the entire battery from Kia 2015 with a used one from 2018. The car's computer recognized the new battery without any problems because it receives all information from the BMS belonging to the battery and therefore there is no need to update... I hope that will be in your...

This confirms to me that BMS reads only voltages from individual cells directly. Doesn’t matter what capacity they have and if they differ slightly or massively. Which means that we can put higher capacity cells as long as they respect 3.3V-4.1V range which is BMS programmed to monitor. Problem...

I’ve made short video about what information BMS gets from one module.

Thanks for the info Dondahaka, I think that you should charge old ones to maximum voltage (4.1v or higher if it’s possible but no more than what BMS think it is maximum) but keep new ones around 3.9V. This should give you max charge/discharge range for majority of cells (68 old ones will go...

Hi again Dondahaka, Reading your post in more detail got me thinking and I have a few questions/conclusions that will be useful for my future cell replacement project. Did you charge your old battery to 100% before starting the replacement process? If so, what voltage were most of your best...

Hi, Battery was fully charged, 100%, cells 4.12V, possible range indicated 173km. Down to 10%, cells 3.36V, possible range left 13km. I’ve managed to drive 175km, 25km was on the motorway, rest of it on the local roads, up and down hills, it’s Switzerland after all 🤪. I’m happy with my second...

Well done Dondahaka. Keep us posted and do you have any videos? I’m trying to merge few videos already made in January and make few more soon showing my old pack and post it on YouTube. And then post the link here. Let us know every few weeks about the state of your car. Great effort

When I took a closer look at the specifications of the model from which the new battery was removed, I began to realize that I got better than I thought at first. The 2014-2018 model is advertised on the scrapyard website. Kia is advertising the 2017-2019 year model for sale in the UK. The...

Markinson, look into this link, I would contact them and leave my details to let me know when they get another Kia in this scrapyard. https://www.evbreakers.com/

This was the car, crashed front left side, I’ve got my battery in completely intact shell and all inside was in perfect condition.

How I see it, when the battery of my car becomes weak to the point that I need to do something about it, I’ll do things in certain order of actions. First I would change whole module which holds the weakest cell/cells. That would be easiest and fastest way of doing it. As long as it’s not the...

I have no clue about the batteries of the other cars, I’ve learned lots from this forum but no experience to back it up. I would not dare to give you un advice what to do, just trying to learn myself, use that knowledge on my car and share that experience here which might help others not to make...